ALUMINIUM
\ˌaljʊmˈɪni͡əm], \ˌaljʊmˈɪniəm], \ˌa_l_j_ʊ_m_ˈɪ_n_iə_m]\
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By Princeton University
By DataStellar Co., Ltd
By William R. Warner
By William Hand Browne, Samuel Stehman Haldeman
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A metallic element; atomic weight 27. Symbol Al. It occurs in nature in a great variety of minerals, usually combined with silica, either alone or in connection with iron, magnesium, calcium, and sodium. It also occurs native as an oxid. a. is a white metal, capable of taking a fine polish. Its specific gravity is 2.58. It is very malleable and ductile. It does not oxidize in the air and resists the action of ordinary acids, except hydrochloric acid, but is acted on by alkalis and rapidly changed by mercury or mercury salts.
By Smith Ely Jelliffe
Word of the day
Elizabeth Sara Sheppard
- An English novelist; born at Blackheath, 1830; died Brixton, March 13, 1862. She wrote noted "Charles Auchester"(1853), mystical art novel; "Counterparts, or the Cross of Love"(1854); "My First Season"(1855); "The Double Coronet"(1856); "Rumor", a musical and artistic novel(1858).